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SLA & DLP Resin 3D Printers

High-Resolution 3D Printing with SLA & DLP

SLA and DLP printing offer unmatched accuracy and visual clarity, suitable for functional prototypes, design models, and complex geometries.

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Our SLA Machine Setup Process

A step-by-step process to help you choose, test, and implement the right SLA 3D printer.

Step 1

Requirement Analysis

Understand the customer’s application, materials, part size, precision, volume needs, and budget.

Step 2

Machine and Material Selection

Identify the best-fit machine models and compatible materials based on application, performance needs, and budget.

Step 3

Sample Benchmarking (If Needed)

Print sample parts to validate print quality, dimensional accuracy, and material performance for critical applications.

Step 4

Proposal and 3rd Party Financing Options

Share a commercial proposal and assist in exploring leasing, EMI, or institutional finance options to ease the investment.

Step 5

Installation, Training and Support

Manage machine installation, deliver hands-on operator training, and ensure long-term support via AMC or technical service.

Top Applications of SLA / DLP Resin 3D Printers

Explore real-world uses of SLA and DLP in prototyping, tooling, and end-use parts.

Automotive Lighting, Housings & Interiors

Dental Models & Aligners

High-Detail Product Prototypes

Medical Models & Surgical Guides

Electronics housings

Sculptures and Figurines

Custom Moulds & Soft Tooling

Jewellery Casting Masters

SLA / DLP 3D Printers We Offer

Resin Materials for SLA / DLP 3D Printers

Know Your Technology

Choosing the Right SLA / DLP 3D Printer

SLA and DLP 3D printers are the go-to choice for applications that demand exceptional surface finish, fine detail and tight dimensional accuracy. Used across automotive, medical, jewellery, footwear and consumer product industries, these machines produce resin parts that look and feel closer to injection-moulded components than any other 3D printing technology. As an authorised distributor of UnionTech and Martrix systems in India, SAHAS helps you find the right machine for your application, resin and production volume.

Applications

Where SLA / DLP 3D printing is used in India

  • Automotive prototypes including bumpers, grills, dashboards and interior trims
  • Investment casting patterns for jewellery, aerospace and precision engineering
  • Medical device prototypes, surgical guides and anatomical models
  • Footwear moulds, sole patterns and fashion accessories
  • Consumer product prototypes requiring smooth, paint-ready surfaces
  • Transparent and clear parts for optical and industrial instruments
  • Dental aligners, crowns, surgical guides and orthodontic models
  • Cultural, creative and figurine applications requiring fine surface detail

How to Choose

SLA vs DLP — and what else to look for

SLA vs DLP — what is the difference?

SLA uses a UV laser to cure resin point by point, delivering excellent accuracy and surface finish across large build platforms. DLP uses a digital light projector to cure an entire layer at once, making it faster for smaller parts. For industrial production and large parts, SLA is typically the preferred choice. For dental, jewellery and small-batch precision parts, DLP is highly effective.

Build volume

SLA platforms range from compact 250mm systems for prototyping to ultra large-format systems up to 2100mm for automotive and industrial production. Match the build size to the largest part you intend to produce, or the batch size you need per run.

Accuracy and surface finish

Industrial SLA systems achieve surface roughness as low as 1.5 μm Ra, comparable to injection-moulded parts. If your parts require minimal post-processing or go directly to a client, surface quality should be a key selection criterion.

Resin compatibility

Different applications call for different resins — heat-resistant, castable, transparent, biocompatible or tough engineering-grade. Confirm your machine supports the resin type your application demands. UnionTech systems use an open-source resin platform compatible with materials from BASF, Evonik and DSM Somos.

Laser configuration for large-format systems

Large-format SLA systems use multiple lasers to cover the full build area without sacrificing speed or accuracy. If you are printing large automotive or industrial parts, multi-laser systems significantly reduce build times.

Brands & Models

SLA / DLP machines available with SAHAS in India

UnionTech — Industrial SLA Systems

UnionTech, established in 2000, is one of the world's leading industrial SLA 3D printer manufacturers with over 137 patents and thousands of installations globally. Their open-source platform supports a wide range of engineering-grade resins.

  • Lite Series (100 to 600mm)
    Build: 100 / 300 / 450 / 600mm platforms  |  Entry-level industrial SLA  |  Ideal for prototyping, automotive parts and medical components
  • Lite 380
    Build: 380x380x250mm  |  Compact industrial SLA  |  High accuracy for mid-size prototypes and casting patterns
  • Lite 800 / Lite 600 2.0
    Build: 800x800x550mm and 600x600x400mm  |  Large-format production SLA  |  Suited for automotive, industrial and large prototype runs
  • Pilot / RSPro Series
    Build: 250 / 450 / 600 / 800mm platforms  |  Professional industrial SLA  |  High surface quality, open resin system, granite recoater frame for superior sidewall finish
  • RSPro Large Format (Multi-Laser)
    Build: 1400 / 1800 / 2100mm platforms  |  Multi-laser ultra large-format SLA  |  Print full-size automotive parts, large industrial moulds and architectural models in a single run
  • RA600 / Pi-663
    Build: 600x600x400mm  |  High-precision industrial SLA  |  Suited for detailed prototypes, precision casting and batch production

UnionTech — DLP Systems

  • DLP 200 / 300 / 380 / 800
    Build: 192x108x200mm / 250x140x240mm / 384x216x300mm / 768x432x300mm  |  Professional DLP range  |  Fast layer curing for dental, jewellery, footwear and consumer product applications

Martrix — DLP Systems

Martrix DLP systems are designed for precision small-part production with fast cure speeds, making them well suited for dental labs, jewellery manufacturers and industrial prototyping environments.

  • Martrix 190
    Build: 192x120x280mm  |  Compact high-precision DLP  |  Ideal for dental models, jewellery and fine detail parts
  • Martrix 520
    Build: 298x165x320mm  |  Mid-size precision DLP  |  Higher throughput for batch production of small precision components

Pricing

Price of SLA / DLP 3D Printers in India

What does an industrial SLA or DLP machine cost, and what factors drive the price?

Entry-level DLP systems (approx. ₹2.5 to 10 lakhs)

Compact DLP systems including the Martrix 190 and smaller UnionTech DLP models fall in this range. Suitable for dental labs, jewellery manufacturers and product designers who need fast, high-detail output in a small footprint.

Mid-range industrial SLA systems (approx. ₹10 to 50 lakhs)

Systems like the UnionTech Lite Series and Pilot Series fall here. These are workhorses for prototyping studios, service bureaus and manufacturers across automotive, medical and consumer product sectors who need consistent quality at production volumes.

Large-format and multi-laser SLA systems (approx. ₹50 lakhs to 2+ crores)

The RSPro 800 through RSPro 2100 multi-laser systems fall in this range. These are serious production investments for automotive OEMs, pattern shops and industrial manufacturers printing large parts or running high batch volumes.

What drives the final price?

  • Build platform size — larger platforms cost significantly more
  • Number of lasers — multi-laser large-format systems command a premium for speed and coverage
  • Technology (SLA vs DLP) — industrial SLA systems are generally higher investment than DLP for equivalent build volumes
  • Resin compatibility — open resin platforms reduce your ongoing consumable costs
  • After-sales support — AMC, resin supply, training and spare parts are part of the real cost of ownership

The right system depends on your part size, surface finish requirements and production volume. SAHAS helps you evaluate this before you invest.

Want to know the price of a specific SLA or DLP system suited to your application? Tell us what you need and we will share a detailed proposal.

Get a Price Estimate

How SAHAS Helps

From selection to implementation

Trusted by 1,500+ companies across automotive, aerospace and manufacturing industries in India.

  • Live demos at our offices across major cities
  • On-site consultations for your specific application and resin requirements
  • Sample part printing to validate surface quality and accuracy before purchase
  • Resin selection guidance — we help you match the right material to your application
  • Financing options — we assist with leasing, EMI and institutional finance to ease the investment

Have a part that needs exceptional surface finish or fine detail? Bring your CAD file or a sample and we will show you exactly what SLA or DLP can achieve for your application.

Book a Demo

Explore Further

Other 3D Printing Technologies

Explore the full range of 3D printing and scanning technologies available with SAHAS in India.

DMLS / LBPF  ·  SLS  ·  FDM & Composites  ·  Binder Jetting  ·  Continuous Carbon Fibre  ·  PolyJet  ·  3D Scanners

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Frequently Asked Questions

SLA uses a UV laser and DLP uses a digital projector to cure photosensitive resin layer by layer, enabling high-resolution prints with fine details and smooth finishes.
SLA uses a point-by-point laser to cure resin, resulting in smoother surfaces on larger parts. DLP cures entire layers at once, offering faster print speeds on smaller build areas.
Typical layer heights range from 25 to 100 microns. Higher resolution settings offer finer details but increase print time.
Resins include standard, tough, flexible, castable, biocompatible (dental/medical), high-temperature, and ceramic-filled resins—each tailored for different applications.
SLA/DLP printers can achieve tolerances of ±0.05 to ±0.2 mm depending on part size, geometry, and calibration.
Yes, overhangs and bridges require supports during printing. These are removed manually after post-curing and may leave small marks on the surface.
Post-processing includes IPA washing to remove uncured resin, UV curing to finalize mechanical properties, and support removal. Optional steps include sanding or coating.
Temperature and humidity can affect resin viscosity and curing. SLA/DLP printers perform best in controlled environments between 20–30°C with low humidity.
Limited material strength and thermal resistance make these parts less suitable for heavy-duty functional use. Larger parts also require careful orientation to avoid warping.
Maintenance includes cleaning the resin vat, replacing FEP films, checking the build platform alignment, filtering resin, and keeping optical paths clean for consistent print quality.
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